How to Calculate Resistance of a Lamp in a Parallel Circuit?
What is the resistance of one lamp if three identical lamps are connected in parallel with a combined resistance of 150 ohms?
Answer:
The resistance of one lamp in this scenario is 50 ohms.
When three identical lamps are connected in parallel, the combined resistance can be calculated using the formula:
1/Rt = 1/R + 1/R + 1/R
Given that the equivalent resistance (Rt) is 150 ohms, we can substitute the values and solve for the resistance of one lamp (R).
By simplifying the equation, we get:
1/150 = 1/R + 1/R + 1/R
1/150 = 3/R
R = 50 ohms
Therefore, the resistance of one lamp in this parallel circuit setup is 50 ohms.